It's your comic and you have a right to to whatever you want, be that ending it or fuck-stucking it (idr homestuck).
If it's a joke then you got everyone pretty good, but I don't see why everyone feels the need to say "omg why are you trolling us" like they all know it's a joke. For all we know this is a compilation of doodles you had and this really is how you're going to end it.

We, as fans, have no right to tell you to keep going or to stop doing something in your story.

I usually tend to refrain from commenting because all I have is "ooh I like panel #_ a lot" or something else to that effect.
It certainly doesn't help that I hardly have time to get online anymore, haha.

Not getting to see the response to your creation is indeed discouraging, and it makes your consideration to quit totally understandable.
I, personally, will be going with the generic "no don't go" argument though.
It is entirely up to you, but I'd definitely be sad to see this series go. I was losing my mind waiting for this last couple pages. Watching what Herz is going through is fucking magic and I am/was eagerly awaiting the stories behind the other characters. I love your style, your story, the way you portray your characters so animatedly.
Seriously, I'm at a loss of words to express why/how much I like this story (then again I'm usually at a loss for words about anything). This will stay on my favorites forever though.

If you choose to end it, c'est la vie. It is your choice and you have the absolute right to do so.
If you choose to continue, I promise to put comments on every page, even if they are completely asinine "oh this is pretty" type comments.